Horaia xizangana, Kang & Yang, 2015

Kang, Zehui & Yang, Ding, 2015, New record of Horaia (Diptera: Blephariceridae) in China with descriptions of two new species, Florida Entomologist 98 (1), pp. 118-118 : 118

Horaia xizangana sp. nov. ( Figs. 1–5 )

Diagnosis

Antenna with 9 segments. Antenna and head with long dense black hairs. Posterior margins of 2nd to 7th segments of abdomen with black elliptical spot. Epandrium with a large black elliptical spot basally. Cercus bilobate, each triangular.

Male

Body length 6.5 mm, wing length 5.0 mm. Head ( Fig. 2 ) uniformly black with long dense black hairs. Compound eyes large, upper parts especially large and flat, light brown; lower parts black, with long dense black hairs. Ocelli light yellow, prominent. Antenna with 9 segments, dark brown; scape short, with several long black hairs; pedicel 10 times longer than wide, with long dense hairs; first flagellomere 4 times longer than wide, with several long hairs apically; 2-6 flagellomeres short, without hair; 7th flagellomere twice longer than wide, without hair. Clypeus long, cylindrical. Proboscis long, free portion twice height of head; labrum elongated, with dense hairs, about one quarter of length of proboscis; palpus small, one segment, dark brown.

Thoracic tergum uniformly black without hairs; laterotergite mostly black, except wing base with gray spots; pleuron mostly without hairs except anepisternum, katepimeron and wing base with 3 bunches of long hairs. Coxae and trochanters uniformly dark brown, with dense black hairs; femora mostly yellow brown, with dark brown spot apically, with a row of long dense hairs; tibiae mostly yellowish brown, with dark brown spot apically; mid and hind tibiae with 2 spines apically; fore tarsomeres slender, dark brown; mid and hind tarsomeres yellowish brown. Wing ( Fig. 3 ) broad, subhyaline; veins brown; base of wing margin with long black hairs; R 5 persent at wing margin, A 1 straight. Haltere brown.

Abdomen mostly dark brown, posterior margins of 2nd to 7th segments with black elliptical spot; 1st and 2nd segments each with 2 branches of long dense black hairs laterally; other segments naked.

Male genitalia ( Figs. 4–5 ): Asymmetric. Epandrium irregularly quadrilateral with a large black elliptical spot basally, with short black hairs apically. Cercus bilobate, each triangular, with short hairs apically. Hypandrium fused with gonocoxite, irregularly quadrilateral, slightly concaved distal margin. Outer gonostylus bilobate, dorsal lobe narrowed, with short dense hairs. Inner gonostylus finger-like, slender, hyaline. Parameres slender, transparent, tapered apically.

Female

Unknown.

Type Material

HOLOTYPE Ƌ, CHINA, Xizang, Linzhi, Hanmi , 2011.VIII.6, L. H. Wang ( CAU) . PARATYPES: CHINA, Xizang, Medog , 62K, 2011.IX.14, G. Yao ( CAU) .

Distribution

China (Xizang).

Remarks

This new species is somewhat similar to Horaia manaliella ( Kaul, 1976) , but can be easily separated from the latter by the following fea- tures: antenna with 9 segments; antenna and head with long dense black hairs, posterior margins of 2nd to 7th segments with black elliptical spot; epandrium with a large black elliptical spot basally; cercus bilobate, each triangular. In Horaia manaliella ( Kaul, 1976) , the antenna has 8 segments, the epandrium does not have a large black elliptical spot basally, each lobe of the cercus is semicircular ( Kaul 1976; Gibson & Courtney 2007).

Etymology

The specific name refers to the type locality.

Figures

Figs. 1–5. Horaia xizangana sp. nov. (male). 1. Habitus of male, lateral view; 2. Head;3. Wing; 4. Male Genitalia, dorsal view;5. Male Genitalia,ventral view. Abbreviations:c = cercus; ep = epandrium; gl = gonocoxal lobe; gs = gonostylus; gx = gonocoxite; hyd = hypandrium; pa = parameres. Scale bar: 1, 3 = 1 mm; 2, 4–5 = 0.25 mm.